frazioni algebriche

frazioni algebriche

9th Grade

11 Qs

quiz-placeholder

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frazioni algebriche

frazioni algebriche

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Anna Melinda [LDN]

Used 40+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Quale delle seguenti frazioni algebriche è riducibile?

a2b2a2+b2\frac{a^2-b^2}{a^2+b^2}

a2+b2a+b\frac{a^2+b^2}{a+b}

aba+b\frac{ab}{a+b}

a2b2a+b\frac{a^2-b^2}{a+b}

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Quali sono le C.E della frazione  3xx29\frac{3x}{x^2-9}  ?

 x±3x\ne\pm3  

 xox\ne o  

 x3x\ne3  

Tutto R

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

L'espressione   3x+52\frac{3x+5}{2}  è una frazione algebrica

Vero

Falso

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La semplificazione della frazione algebrica  6a3a2b3a2      con a0\frac{6a-3a^2b}{3a^2}\ \ \ \ \ \ con\ a\ne0  è:

 6ab6a-b  

 2a3b3a\frac{2a-3b}{3a}  

 2ab3\frac{2-ab}{3}  

 2aba\frac{2-ab}{a}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Il m.c.m. dei denominatori delle seguenti frazioni  3aab      2ba\frac{3a}{a-b}\ \ \ \ \ \frac{\ 2b}{a}  è:

 aa  

 aba-b  

 a2ba^2-b  

 a2aba^2-ab  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La semplificazione della seguente frazione  y22y3y312y2+12y\frac{y^2-2y}{3y^3-12y^2+12y}  è:

 13(y2)\frac{1}{3\left(y-2\right)}  

 y3(y2)\frac{y}{3\left(y-2\right)}  

 13y(y2)\frac{1}{3y\left(y-2\right)}  

 y23(y24y+4)\frac{y-2}{3\left(y^2-4y+4\right)}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dopo aver determinato le CE, risolvi la seguente equazione fratta numerica:

 2xx2x61x+2=0\frac{2x}{x^2-x-6}-\frac{1}{x+2}=0  
(fare sul foglio)

 3-3   non accettabile

 3-3  accettabile

 4-4  

 22  

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